Operating Manual 6175.4760.02 – 01 3.211
M3SR Series 4100 Changing the Modulation Mode
3.9.4.8 Changing the Modulation Mode
Softkey Softkey Type Description
Listbox 1. Press 'MODE' softkey.
2. Select desired modulation mode from list-
box with the knob.
3. Press 'ENT' to confirm.
The listbox is closed.
The new modulation mode is now used for re-
ception and transmission.
Possible values are:
A1A (CW, Morse telegraphy)
A3E (AM, amplitude modulation)
H3E( AME, single sideband, full carrier)
R3E( AME, single sideband, reduced car-
rier)
F3E (FM, frequency modulation)
+J3E ( USB, upper sideband, SSB)
-J3E ( LSB, lower sideband, SSB)
+J2D (USB for external modems)
-J2D (LSB for external modems)
F1D (FSK, frequency shift keying)
B8E (ISB, two independent sidebands for
voice)
B7D (ISB, two independent sidebands for
external modems)
Avoid using +/-J3E for operation with external
modems, this mode is optimized for voice
communication only. Use +/-J2D instead.
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